Instantaneous frequency of signals: Concepts, estimation techniques and applications

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Instantaneous frequency of signals: Concepts, estimation techniques and applications

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dc.contributor.author Boashash, B
dc.contributor.author Jones, G
dc.contributor.author O'Shea, P
dc.date.accessioned 2012-05-07T07:45:05Z
dc.date.available 2012-05-07T07:45:05Z
dc.date.issued 1989
dc.identifier.citation Proceedings of 1989 SPIE International Conference on Advanced Algorithms and Architectures for Signal Processing, Vol. 1152, San Diego, August 1989 en_US
dc.identifier.uri http://hdl.handle.net/10576/10821
dc.description This paper is an IF review paper and shows many interesting results such as: 1) that the signal phase spectrum theta(f), and hence its Time-Delay depend on both the phase and amplitude of the time signal, whereas the IF depends, by Ville's or Gabor’s definition, depends only on the phase term. 2) the study of the cross-terms in the STFT and therefore the Spectrogram (in appendix 2). (Additional details can be found in the comprehensive book on Time-Frequency Signal Analysis and Processing (see http://www.elsevier.com/locate/isbn/0080443354). In addition, the most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated). en_US
dc.description.abstract The instantaneous frequency (IF) of a signal is a parameter which is of significant practical importance, since in many situations it corresponds to some physical phenomenon. This paper considers the definition of the IF, describes a number of ways of estimating it (along with a consideration of how closely the estimates are likely to correspond to physical reality), and presents two applications where IF estimation is used. en_US
dc.language.iso en en_US
dc.publisher SPIE en_US
dc.subject STFT cross-terms en_US
dc.subject artifacts en_US
dc.subject interferences en_US
dc.subject IF en_US
dc.subject instantaneous frequency en_US
dc.subject time-varying en_US
dc.subject non-stationary en_US
dc.subject frequency modulated en_US
dc.subject FM en_US
dc.subject monocomponent en_US
dc.subject multicomponent en_US
dc.subject sub-components en_US
dc.subject time-varying filtering en_US
dc.subject analytic signal en_US
dc.subject Hilbert Transform en_US
dc.subject Cauchy principal value en_US
dc.subject Quadrature components en_US
dc.subject Stationary phase principle en_US
dc.subject BT product en_US
dc.subject time-frequency distributions en_US
dc.subject time-frequency representations en_US
dc.subject TFD en_US
dc.subject TFR en_US
dc.subject peak detection IF en_US
dc.subject time-frequency plane en_US
dc.subject time-frequency domain en_US
dc.subject instantaneous bandwidth en_US
dc.subject standard deviation en_US
dc.subject spread en_US
dc.subject Short-time Fourier Transform en_US
dc.subject time-frequency filtering en_US
dc.subject XWVD en_US
dc.subject cross-Wigner-Ville Distribution en_US
dc.subject Spectrogram en_US
dc.subject spectral variation en_US
dc.subject LFM en_US
dc.subject linear FM signal en_US
dc.subject bias en_US
dc.subject variance en_US
dc.subject SNR en_US
dc.subject IF estimation en_US
dc.subject discrete IF en_US
dc.subject Central Finite Difference en_US
dc.subject t-f window en_US
dc.subject t-f concentration en_US
dc.subject t-f signal synthesis en_US
dc.subject t-f signal enhancement en_US
dc.subject t-f signal separation en_US
dc.title Instantaneous frequency of signals: Concepts, estimation techniques and applications en_US
dc.type Article en_US

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